Section 2: PCB Installation and Startup
2-26 Section 2: PCB Installation and Startup Aspila EX Hardware Man-
Direct Inward Dial (DID) (4/8DIOPU) PCB (Figure 2-13)
The 4/8DIOPU PCB supports the analogue DID and single line telephone interface functions (such as
Off-Premise Extension). The function type is assigned in programming for each port. The circuit types,
however, should be grouped together. For example, with 3 DID circuits and 1 OPX circuit, they should
be grouped as DID, DID, DID and OPX and not DID, DID, OPX and DID.
The DIOPU PCB provides:
• 4 (4DIOPU) or 8 (8DIOPU) DID trunk circuits
• 4 (4DIOPU) or 8 (8DIOPU) DID trunk status LEDs
• 1 PCB status LED
• 1 run/block switch
The CN3 and CN5 connectors each provide connection to 4 analogue DID trunk ports, which are
polarity sensitive (tip to tip, ring to ring). The OPX circuits, however, are not polarity sensitive. The
DIOPU requires one universal slot, with 16 maximum PCBs per system.
Connector Pin-Outs on DIOPU PCB
RJ61 Cable Connector - CN3
Line No. Pin No. Connection
15 Tip
4Ring
23 Tip
6Ring
32 Tip
7Ring
41 Tip
8Ring
RJ61 Cable Connector - CN5 (8DIOPU Only)
Line No. Pin No. Connection
55 Tip
4Ring
63 Tip
6Ring
72 Tip
7Ring
81 Tip
8Ring
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